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/r <br /> BLAINE , , <br /> TECH SERVICES mc <br /> I <br /> GROUNDWATER SAMPLING SPECIALISTS <br /> SINCE 1985 <br /> April 6, 2005 <br /> Karen Petryna <br /> Shell Oil Products US <br /> 20945 South Wilmington Ave <br /> Carson, CA 90810 `y <br /> ry <br /> First Quarter 2005 Groundwater Monitoring at <br /> - Shell-branded Service Station - <br /> 4315 Waterloo Road <br /> Stockton, CA <br /> Monitoring performed on January 5 and March 7, 2005 <br /> ---- Groundwater=Monitoring=Reporr050105=BP=2-Reissue <br /> = <br /> This report covers the routine monitoring of groundwater wells at this Shell-branded facility In <br /> accordance with standard procedures that conform to Regional Water Quality Control Board <br /> requirements, routine field data collection includes depth to water, total well depth, thickness of any <br /> separate immiscible layer, water column volume, calculated purge volume (if applicable), elapsed <br /> evacuation time (if applicable), total volume of water removed (if applicable), and standard water <br /> parameter instrument readings Sample material is collected, contained, stored, and transported to <br /> the laboratory in conformance with EPA standards Purgewater (if applicable) is, likewise, <br /> collected and transported to the Martinez Refining Company <br /> Basic field information is presented alongside analytical values excerpted from the laboratory report <br /> in the cumulative table of WELL CONCENTRATIONS The full analytical report for the most <br /> recent samples and the field data sheets are attached to this report <br /> At a minimum, Blaine Tech Services, Inc field personnel are certified on completion of a forty hour 7` <br /> Hazardous Materials and Emergency Response training course per 29 CFR 1910 120 Field <br /> personnel are also enrolled in annual eight-hour refresher courses <br /> SAN JOSE SACRAMENTO LOS ANGELES SAN DIEGO <br /> 1680 ROGERS AVENUE SAN JOSE CA 96112 1105 [4083 673 0655 FAX (d05)573 7771 LIC 746684 www blelnetech com <br />